Wash your hands with soap and water for at least 20 seconds. Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? What is the pH range of Bromophenol blue? Primary methods to prevent food spoilage do NOT include Our Environment Class 10 MCQ Question 6. A. A 7 year old girl developed a sore throat and fever for 2 days. d) Phaeophycophyta 3. Who was the first to observe "animalcules" under the microscope? View Answer, 3. b) Viruses c) UV light Mycoplasma pneumoniae is an unusual bacteria with distinctive colonies which are. 11. D. Hanging Drop technique. Label these plates 1/10 3 through 1/10 6. A sputum sample was taken for the lab diagnosis for the isolation and identification of the microorganism. MCQ.8): In which of the following bacterial condition, fimbriae helps the bacteria to stick to the mucous membrane of the host? b) hydrophilic barrier Secondary metabolites B) False, Pasteurization is used to sterilize milk. View Answer, 10. Bacteria or other organisms used in AST testing should be from a fresh culture, ii) the composition and preparation of the agar and broth media used (e.g. 6. B) are by-products of metabolism that are not important to microbe function. uses 50 grams of glucose in a 500ml solution. Creative Commons Attribution License The following diagram shows an adenovirus: ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<, Your email address will not be published. 2011-2023 Sanfoundry. (3) It provides information on whether the product formed by microorganisms is new or not. lauren conrad and stephen colletti /; 2. Clean and disinfect surfaces that are touched often. a) peptidoglycan 12. It doesn't include viruses and prions because they are classified as non-living. The respiratory chain of bacteria is associated with the _____________ 1. View Answer, 5. Blood C. Electrolytes D. Water: 5. uses 100 grams of glucose in a 300ml solution. Microbiology is the study of living organisms that are not visible to the naked eyes. The Microbiology Society has a vision and mission around which we base our strategy. 3. Home Fermentation Technology Objective Questions 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers. c) MacConkeys Agar plate b) Clostridium botulinum Engineering 2023 , FAQs Interview Questions, on 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers, Fermentation Technology Objective Questions, 300+ TOP MCQs on Database Screening and Screening by Nucleic Acid Hybridisation 1 and Answers, 300+ TOP MCQs on Database Screening and Screening by Nucleic Acid Hybridisation 2 and Answers, 250+ MCQs on Media for Industrial Fermentations Minerals, Growth Factors and Buffers and Answers, 250+ MCQs on Improvement of Industrial Microorganisms and Answers, 250+ TOP MCQs on Vibration Isolation and Transmissibility and Answers, 250+ TOP MCQs on Multiversion Schemes, Snapshot Isolation, 250+ TOP MCQs on Microbes in Industrial Products-3 and Answers, 250+ TOP MCQs on Microbes in Metal Containing Habitat and Answers, [12 Class Notes] MICROBES IN HUMAN WELFARE Biology CBSE, 250+ TOP MCQs on Microbes as Biofertilizers and Answers, 250+ TOP MCQs on Transaction Isolation Levels and Answers, 250+ TOP MCQs on Enzyme Extraction and Isolation Choice of Enzyme Sources and Answers, 250+ MCQs on Microbial Growth Kinetics Batch Culture and Answers, 200+ TOP CELL CULTURES and CHARACTERISTICS Interview Questions and Answers, 200+ TOP Microbiology Of Foods Interview Questions with Answers, 250+ TOP MCQs on Microbes in Industrial Products-2 and Answers, 250+ MCQs on Brewing Yeast Differentiation (Traditional Methods) and Answers, 250+ TOP MCQs on Microbes in Household Products-2 and Answers, 300+ TOP Cell Cultures & Characteristics Objective Questions and Answers, 300+ TOP Microbiology of Foods Objective Questions & Answers. 2. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. a. Mycoplasma pneumoniae is an unusual bacteria which has distinctive characteristics, such as. A) are essential to microbe function. C) 72 oC for 15 seconds. lack of cell wall. Pathogen testing is used to identify pathogenic organisms in manufacturing environments, ingredients or finished products that could harm the consumer. True Answer: C Answer: B All of the above. All the microorganisms such as amoeba, protozoa, viruses, bacteria are studied under microbiology. a) Algae B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. 1. D) exposure. YB STUDY is an Indias largest Online learning website offers learning for classes 1 to 12 and competitive exams like NEET, JEE, Olympiads, NTSE, KVPY, State boards etc. Which of the following are important primary screening techniques? Best method of sterilization at commercial level is a) Hot air oven b) Autoclaving c) Radiation d) Sun light answer-C 5. Some strains, however, can cause illness. 1. MCQ on Industrial Microbiology. What is the name of the procedure performed under sterile conditions to eliminate 5. d) DNA polymerase II Which of the following are present in teichoic acids? Potato Dextrose Agar plate Which of the following is not related to microbes?a) Microbes are not ideal for biotechnologyb) Microbes produce chemicals during their metabolismc) Microbes can be grown on artificial mediumd) Microbes can live in highly acidic mediumAnswer: aClarification: Microbes can be grown on artificial cultures media where they form colonies. They are mainly of two types: Primary and Secondary Screening Primary Screening : The effective screening must in one or few steps which allow the discarding of many valueless microorganisms, while at the . c) Spirochaeta Which of the following method is useful for the isolation and detection of organisms having the ability to produce growth factors? Answer: B Home Class 12 Biology Objective Questions 250+ TOP MCQs on Microbes and Answers. A) fermentation, downstream processing, removal of waste, inoculation. a) Crowded plate technique (1) Screen organic acid-producing microbes. All Rights Reserved. View Answer, 45. Which of the following method is not used in isolation and screening of desired microorganisms? Definition: true bacteria; bacteria excluding the archaea. A test tube contains 9ml distilled water. a) plasmid A. Phenol red plate B. Auxanographic technique _______ are the agents that act as carriers of a pathogen and spread diseases. View Answer, 41. Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________ 9. Question 6. B. Butanol is obtained by fermenting molasses by. B. Auxanographic technique C) sugar. b) Gram-positive organisms The section contains questions and answers on cell division modes, bacteria growth cycle and quantitative measurement. Which among the following are Spirochetes? d) chitin, cellulose, or hemicellulose Antibiotic producing microorganisms can be detected by the method__________, 5. d) Phenol red determined to obtain accurate susceptibility results. In the following diagram, what does the question mark represent?a) Ciliab) Flagellac) Haird) PseudopodiaAnswer: b d) hydrophobic barrier and site of generation of protonmotive force b) Automatic Type Counter & Classifier A) manipulating the growth environment. 38) All of the following statements are correct about the most common bacteriological media called sheep blood agar that is used in the microbiology laboratory, b) Used for the culture of common fastidious bacteria, c) It is used for the culture of hemolytic bacteria. View Answer, 24. D) all of the above. b) cellulose c) nucleotides It includes the physical processes of screening, comminution, grit removal, and sedimentation. Which of the following yeast can be used to produce microbial protein? Identification of bacteria by biochemical tests. [2][3] S. aureus is found in the . 2. B. Auxanographic technique 13. Crowded plate technique is used for screening of____________. Which organisms show the zone of inhibition grown on a Petri plate? This book uses the Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. C) alcohol. Wish you the best in your endeavor to learn and master Microbiology! screening of microorganisms includes mcq. 8. Crowded plate technique the virus must not be able to lyse red blood cells. d) 2 micrometer in diameter 26. b) RNA polymerase Crowded plate technique View Answer, 9. Which of the following are the growth morphology of the protozoa? In batch fermentation, Crowded plate technique a) Study of molecules that are visible to human eyes The section contains questions and answers on biological and economic importance of algae, algae characteristics and classification, ecology and protozoa importance, protozoa characteristics, protozoa morphology and reproduction. View Answer, 28. B. Auxanographic technique APT test C. Elastase I D. Quantitative fecal fat testing: 6. Biological contaminants occur in the air as aerosols and may include bacteria, fungi, viruses, and pollens. You can also check this one and can share your opinions on Cell Culture Plates Product. Which of the following method is not used in isolation and screening of desired microorganisms? It is the organization which has the largest department of Research and Development. a) Methyl red Prokaryotes are unicellular microorganisms whose cells have no nucleus. d) Pedoviridae a) Chemical and biological assay b) Xanthophycophyta It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. Which of the following method is not used in isolation and screening of desired microorganisms? In which of the following treatment involve oxidation of organic constituents of the wastewater? a) phospholipids 1. c) base analog c) 5 8 Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single circular chromosome. 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. 1g of soil is added to that test tube and the soil is allowed to settle down. 8. You will get a gown or sheet as a cover. Genetic engineering is also used to improve the biodegradation . A. Which one of the following is called as the 'brewers yeast'. 3.0 4.6 View Answer, 39. The section contains MCQs on chemotherapy historical highlights, antibiotics and their actions, microbiological assay of antibiotics, antifungal, antiviral and antitumour antibiotics. The section contains multiple choice questions and answers on normal flora, human host, normal flora distribution, microbial adherence, epithelial cell layers penetration and microbial virulence factors. 3. What is the average size of a microbe?a) Less than 1 mmb) More than 1 cmc) Less than 0.1 mmd) More than 0.1 mmAnswer: cClarification: Microbes are microorganisms which have a size less than 0.1 mm. It is a non-profit organization and a key resource for medical research. View Answer, 2. Who is known as the father of Microbiology? A) True Thank you so much for sharing. Clarification: Hanging drop technique is used for motility testing of bacteria. B. the virus must be able to cross-link red blood cells directly. Which of the following is the example of encapsulated gram-positive bacteria? Answer: A includes 6 urine samples. A 19-year-old male living in a tropical region of India visited the hospital. (Or show it to your microbiology professor, just for fun.) View Answer, 7. b) The organism must be able to produce a high yield of product. b) Monotrichous A. Each daughter cell is a clone of the parent cell. Good work practices include, a. smelling and tasting chemicals . 30 seconds. Q.1. A. C. Enrichment Culture technique 4. Which scientist proposed adding a kingdom for protists? c) beta-glucosidase True 6. Which of the following foods is NOT made by fermentation? OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. The greatest resolution in light microscopy can be obtained with ___________ Answer: D Microbes are certainly ideal for biotechnology. D. Rose Bengal Agar plate. D. American Type Classifier and Collection. A. 250+ TOP MCQs on Microbes in Industrial Products-4 and Answers, 300+ TOP MCQs on Microbes in Human Welfare and Answers, 250+ TOP MCQs on Microbes in Household Products-1 and Answers, 250+ TOP MCQs on Microbes in Production of Biogas and Answers, 250+ TOP MCQs on Microbes in Household Products-2 and Answers, 250+ TOP MCQs on Microbes in Industrial Products-3 and Answers, 250+ TOP MCQs on Microbes in Sewage Treatment and Answers, 250+ TOP MCQs on Microbes in Industrial Products-1 and Answers, 250+ TOP MCQs on Microbes in Industrial Products-2 and Answers, 250+ TOP MCQs on Microbes as Biofertilizers and Answers, [12 Class Notes] MICROBES IN HUMAN WELFARE Biology CBSE, 250+ TOP MCQs on Microbes as Biocontrol Agents and Answers, 250+ TOP MCQs on Microbes in Metal Containing Habitat and Answers, 250+ TOP MCQs on Microbes in Bioleaching Process and Answers, 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers, 300+ TOP MCQs on Bioremediation and Answers, 250+ TOP MCQs on Heat Transfer Applications Thermal Processing and Answers, 250+ TOP MCQs on Environmental Issues Water Pollution and its Control and Answers, 250+ TOP MCQs on Biotechnology Applications Ethical Issues and Answers, 250+ TOP MCQs on Hydraulic Fracturing Frac Job Design and Answers. C) use of microbes in sewage and pollution control. 4. a) Streptomyces sp. b) Longest wavelength of visible light used b) Potato Dextrose Agar plate consent of Rice University. b) hexokinase If you are redistributing all or part of this book in a print format, A. C) new batches of microorganisms are screened for increased yield. Lung infection was suspected, and a chest X-ray was performed which showed infection in both lungs. The screening is isolation and detection of microorganisms of interest. Your health care provider will insert a special tool called a speculum into your vagina. a) Leuconostoc citrovorum Which among the following are microaerophilic bacteria? It is done by using paper, thin layer or other chromatographic techniques. What is high throughput screening used for? Pathogen testing is continuously performed throughout the production . (1) Its a process for the detection and isolation of microorganisms of our interest. In this process the bacterium, which is a single cell, divides into two identical daughter cells. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. Full-form of ATCC is _________ b) The organism must be able to produce a high yield of product B) False, Yeast cells prefer aerobic conditions to multiply in number. View Answer, 6. C) inoculation, fermentation, downstream processing, removal of waste. a) fats c) ribitol or glycerol residues Which of the following is not a subfield of microbiology? B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. b) plaque answer choices. A. d) Malaria d) Indicator dye technique Note when energy and additional compounds are necessary for any of these mechanisms to operate. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . b) Streptococcus lactis Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite. B) mass, controlled culture of microbes to synthesize products. Microorganisms are minute, unicellular organisms that aren't visible to the naked eye. You can also prevent infections through: Hand-washing. B) False, Mass-produced microbial cells can be used as livestock feed. a) American Type Culture Collection B) inoculation, downstream processing, fermentation, removal of waste. We recommend using a A) radiation. B. Complex media are prepared using digests of microbial, animal, or . . c) holozoic 3. Easy detection of the small percentage of useful microorganism. Several microbes are useful to humans in diverse ways like in household products, industrial products, agricultural products, etc. 6.8 - 7.2 b. d) Cristispira Answer: C The bacterial cell then elongates and splits into two daughter cells each with identical DNA to the parent cell. (2) It determines which microorganisms can produce a compound. View Answer, 2. View Answer, 25. Has two nuclei C. Forms cysts D. Has a sucking disc E. Survives well in ordinary water, even when this is hot or contains chlorine or detergents, Flagellate parasite is the cause of vulvovaginitis in women in . D. Indicator dye technique. Which of the following statements about food chain and energy . d) cathode rays Which of the following method is not used in isolation and screening of desired microorganisms? A) True d) Nitrosovibrio tenuis False. a) Crowded plate technique c) Desulfotomaculum sp. a. Streptococcus pyogens b. d) Indicator dye technique b) Nitrosococcus oceanus Answer: A Has three to five flagella at the posterior end B. is affected by the patient's food intake on the day of testing. c) Nitrosomonas europaea For this dilution, it may be said that the solution was diluted _______ Which of the following foods is NOT made by fermentation? B) False, When in doubt, throw it out. d) intercalating agents A) True The microorganisms are chosen based on the rest three criteria. Answer: A What is the approximate size of the bacterial cell? It will immensely help anyone trying to crack an exam or an interview. Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes It works best in this range and is also used as a tracking dye in Agarose-Gel Electrophoresis. Bacteria do not grow at a water activity level below 0.91 and require neutral pH (6.5-7) to cause food spoilage (e.g. Answer: C The presence of E. coli in a drinking water sample almost always indicates recent fecal contamination, meaning there is a greater . Phagocytosis is a critical part of the immune system. 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. b. Litmus milk test: When bacteria is grown in this medium, there may be the production of acids or alkali or even no change in pH. Except where otherwise noted, textbooks on this site View Answer, 4. 3. Fecal coliform bacteria are a subgroup of total coliform bacteria. What are the cell wall structural components of fungi? B) plasmolyzes bacteria and fungi. Contact Us. View Answer, 44. Secondary screening can give information about (1) The genetic instability in microbial cultures (2) Number of products produced in a single fermentation (3) The structure of the product (4) All of the above. View Answer, 16. Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. View Answer, 46. A. Fecal occult blood B. B) nutrients are continuously fed into the reactor and the product is siphoned off during the run. A) are among the most widely used preservatives. When examined he said the cough first started about a month ago, he said no other symptoms appeared in the first week, he complained about the loss of appetite due to which he lost some of his body weight. View Answer, 8. b) Magnifying lens C. 5 8 c) parasitic infection Microbes like bacteria and many fungi can be grown on nutritive media to form colonies, that can be seen with naked eyes. Which was the first disease for which a chemotherapeutic agent was used? d) Rose Bengal Agar plate The normal composition of feces includes all of the following except: A. Bacteria B. d) Study of microscope C lostridium perfringens is an obligate anaerobic bacteria that do not require oxygen to grow and thus it is not Microaerophilic, microaerophilic bacteria require low amounts of oxygen for growth. c) An objective with minimum numerical aperture 15. View Answer, 5. c) AIDS The section contains MCQs on size, shape and arrangement of bacterial cells, cell wall, structures external and internal to the cell wall. (2) Chemical, physical and biological properties of a product are also determined during secondary screening. c) 2mm in diameter c) carbohydrates The principal microorganism for yogurt is ______________________ The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. 2. View Answer, 15. However, if environmental contamination can enter the system, pathogens could get in too. 25. a)Microaerophilic. a) Micrococci The normal brown color of the feces is produced by: A. Cellulose B. Pancreatic enzyme 1999-2023, Rice University. Bacteria having clusters of flagella at both poles of cells are known as? 11. Growth Factor producers d) Fungi Secondary screening may be qualitative and quantitative in its approach. You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. Types of pathogens include specific bacteria strains, viruses, fungi, or parasites that can cause illness in its host. 5. pH, cations, thymidine or thymine, use of supplemented media). The serial dilutions of soil are performed and spread on a Petri plate and allowed to grow. Avoid contaminated food and water. a) Amphitrichous Clarification: Adenoviruses cause respiratory infections. Glycolysis can occur in ___________ View Answer, 42. Primary treatment removes material that will either float or readily settle out by gravity. Eubacteria can be either gram-negative or gram-positive, they have economic, agricultural, and medical importance. Clarification: The optimum temperature for the growth of an organism should be above 40C. View Answer, 12. It should not leave damage and odour. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. Everything you need to know about water and wastewater microbiology. C. Enrichment Culture technique View Answer, 4. a) anaerobic cells 1. 3. 16) A bacteriological stain also known as the differential stain is used for the identification of acid-fast organisms, Which of the following metabolic property differentiate the pink-colored colonies of. A BV test is done in a similar way as a pelvic exam or Pap smear. b) mycotic infection 5. A skin biopsy test was performed and the infection was diagnosed to be a parasitic infection. d) Physical assay Which of the following is a family of lambda phage viruses? c) Enrichment Culture technique View Answer. b) an increase in number of cells These are non-enveloped viruses with a double-stranded DNA genome. d) Coxiella burnetii 1. View Answer, 13. 9. 9. The section contains questions and answers on light microscope, microbial Stains, transmission and scanning electron microscope. D) prevent mold. D) removal of waste, inoculation, fermentation, downstream processing. False. Which shape of bacteria has been represented in the following diagram?a) Rod-shapedb) Comma shapedc) Spiral shapedd) Spherical shapedAnswer: aClarification: The following diagram represents rod-shaped bacteria, magnified 1500X. D. Indicator dye technique. d) gene 2. Which of the following pulmonary pathogens cannot be easily detected by the gram staining technique when performing a microscopy test? Penicillin causes inhibition of Mycoplasmas.